TM   9-2330-267-14&P S e c t i o n     I l .     M A I N T E N A N C E     A L L O C A T I O N     C H A R T     ( C o n ’ t ) (1) (2) (3) (4) (5) (6) Maintenance   Level Unit DS GS Depot Group Maintenance Tools and Number Component/Assembly Function C O F H D Equipment    Remarks 1204 Hydraulic  Brake  System Wheel  Cylinder Replace 1.5 Assembly Airbrake   Chamber Test 0.5 Replace 0.8 Master  Cylinder Service 0.1 Replace 1.0 Hydraulic  Brake  Lines Inspect 0.2 Replace 1.5 1208 Airbrake System Air Hoses Replace 0.5 Air  Reservoir Service 0.1 Replace 1.5 Air  Filter Replace 0.5 Repair 0.5 Relay Valve Replace 0.5 Airbrake   Chambers Replace 1.0 Repair 1.0 13 WHEELS 1311 Wheel Assembly Replace 1.0 1313 Tires and Tubes Brakedrum Replace 1.0 Repair 1.0 Tires Replace 2.0 Repair 2.0 Tubes Replace 2.0 Repair 0.5 15 FRAME,  TOWING  AT- TACHMENTS,  DRAW- BARS,  AND  ARTICULA- TION  SYSTEMS 1501 Frame Assembly Drawbar  Coupler Replace 0.5 B-4